linux-kernel - [PATCH v7 2/4] dt-bindings: spi: spi-mtk-nor: add new clock name 'axi' for spi nor

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Date:   Mon, 20 Dec 2021 20:18:23 +0800
From:   Tinghan Shen <tinghan.shen@...iatek.com>
To:     <robh+dt@...nel.org>, <linus.walleij@...aro.org>,
        <matthias.bgg@...il.com>, <broonie@...nel.org>
CC:     <bgolaszewski@...libre.com>, <sean.wang@...iatek.com>,
        <bayi.cheng@...iatek.com>, <gch981213@...il.com>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-gpio@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>, <linux-spi@...r.kernel.org>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        Tinghan Shen <tinghan.shen@...iatek.com>
Subject: [PATCH v7 2/4] dt-bindings: spi: spi-mtk-nor: add new clock name 'axi' for spi nor

Some mtk spi nor has dedicated dma(s) inside. Add a new clock name, axi,
for spi nor dma bus clock.

Signed-off-by: Tinghan Shen <tinghan.shen@...iatek.com>
---
 .../devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml       | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml b/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml
index 7393f30535df..478afebfec9c 100644
--- a/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml
+++ b/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml
@@ -43,14 +43,19 @@ properties:
     maxItems: 1
 
   clocks:
+    minItems: 2
     items:
       - description: clock used for spi bus
       - description: clock used for controller
+      - description: clock used for nor dma bus. this depends on hardware
+                     design, so this is optional.
 
   clock-names:
+    minItems: 2
     items:
       - const: spi
       - const: sf
+      - const: axi
 
 required:
   - compatible
@@ -84,4 +89,3 @@ examples:
         };
       };
     };
-
-- 
2.18.0